This is the webpage for the Quake seminar. During the academic terms we meet Wednesdays at 2:15 for discussion of current journal articles or our own research projects.
This quarter we will focus on marine geophysics. The plan is to talk about papers focused on the three different plate boundary types from observations done in marine environments or releveant to marine geophysics.
Papers with names on the side have been chosen by somebody.
Subduction Zones
January 16th. Introduction to subduction.
Hyndman, R. D. (2006). The seismogenic zone of subduction thrust faults: what we know and don’t know, in The Seismogenic Zone of Subduction Thrust Faults, T. Dixon and J. C. Moore (Editors), Columbia
University Press, New York. Justin BrownJanuary 23rd.
S. D. King (2007). Mantle Downwellings and the Fate of Subducting Slabs: Constraints from Seismology, Geoid Topography, Geochemistry, and Petrology, in Treatise on Geophysics. p. 325 - 370. Stuart Schmitt.
January 30. Tsunamis & Seafloor geodesy
P Cummins (2007). The potential for giant tsunamigenic earthquakes in the northern Bay of Bengal. Nature, 449, 75 - 78 Owen Hurd
Hiromi Fujimoto, K. Koizumi, Y. Osada, T. Kanazawa (1998) Development of instruments for seafloor geodesy. Earth Planets Space, 50, 905–911. Emily Desmarais
Spreading Zones
February 6
S. Solomon et al. (1988). The seismic moment budget of slowly spreading ridges. Nature, 334, 58 - 60. Hiroki Sone
T. Tentler (2005) Propagation of brittle failure triggered by magma in Iceland. Tectonophysics 406, 17– 38. Gwyneth Hughes
February 13 Ridge seismicity
D. Stroup et al. (2007) Pulse of the seafloor: Tidal triggering of microearthquakes at 9.50N East Pacific Rise, GRL, 34 L15301. Kyle Anderson
M. Tolstoy et al (2008) Seismic identification of along-axis hydrothermal flow on the East Pacific Rise. Nature, 451, 181 - 184 Dan Sinnett
February 20 More on Seafloor Geodesy
Tadokoro, K., M. Ando, R. Ikuta, T. Okuda, G. M. Besana, S. Sugimoto, and M. Kuno (2006), Observation of coseismic seafloor crustal deformation due to M7 class offshore earthquakes, Geophys. Res. Lett., 33, L23306, doi:10.1029/2006GL026742. Emily Desmarais
Ikuta, R., K. Tadokoro, M. Ando, T. Okuda, S. Sugimoto, K. Takatani, K. Yada, and G. M. Besana (2008), A new GPS-acoustic method for measuring ocean floor crustal deformation: Application to the Nankai Trough, J. Geophys. Res., 113, B02401, doi:10.1029/2006JB004875. Germán Prieto
Transform-type Zones
February 27
J. McGuire et al. (2004) Foreshock sequences and short-term earthquake predictability on East Pacific Rise transform faults, Nature, 434, 457 - 463. Annemarie Baltay
M. Liggi, E. Bonatti, L. Gasperini, A. N.B. Polaikov (2002) Oceanic broad multifault transform plate boundaries,Geology, 30, (1), 11 - 14. Justin Brown
March 5 Invited Seminar Speaker 2:00 pm
Harry Green UC Riverside
Earthquakes in Subducting Lithosphere Require Mineral Reactions and Provide Constraints on Various Mantle Processes, such as Recycling of H2O to the Deep Mantle
March 12 TBD
Papers to choose:
J. Tuzo Wilson (1965) A new class of faults and their bearing on continental drift. Nature, 207, 343 - 347.
D. W. Forsyth et al. (2003) Coupled seismic slip on adjacent oceanic transform faults, Geophys. Res. Lett., 30(12), 1618, doi:10.1029/2002GL016454.
F. Storti et al. (2007) Intraplate termination of transform faulting within the Antarctic continent, EPSL, 260, 115 - 126.
M. D. Behn et al (2006) Thermal structure of oceanic transform faults. Geology, 35 (4), 307 - 310.
M. Fournier et al. (2008). In situ evidence for dextral active motion at the Arabia-India plate boundary. Nature Geosciences, 1, 53 - 57.
D. R. Bohnenstiehl, et al. (2004), Breaking into the plate: A 7.6 Mw fracture-zone earthquake adjacent to the Central Indian Ridge, Geophys. Res. Lett., 31, L02615.
P. Gregg et al. (2006) Segmentation of transform systems on the East Pacific Rise: Implications for earthquake processes at fast-slipping oceanic transform faults. Geology 34, 289 - 292
P. Gregg et al. (2007). Spreading rate dependence of gravity anomalies
along oceanic transform faults, Nature, 448, 183 - 188.R. Abercrombie and G. Ekstrom (2001). Earthquake slip on oceanic transform faults. Nature, 410, 74 - 77.
Other papers
J. F. Casey, J. A. Karson (1981) Magma chamber profiles from the Bay of Islands ophiolite complex,Nature, 292, 295 - 301.
K. Key, S. Constable (2002) Broadband marine MT exploration of the East Pacific Rise at 9.50N, GRL, 29, 22, 2054.
K. MacDonald (1982) MID-OCEAN RIDGES: Fine Scale Tectonic, Volcanic and Hydrothermal Processes Within the Plate Boundary Zone. Ann. Rev. Earth Plan. Sci. 10, 155 - 190.
M. Tolstoy et al (2006) A Sea-Floor Spreading Event Captured by Seismometers. Science, 314, 1920 - 1922
M. Tolstoy et al (2008) Seismic identification of along-axis hydrothermal flow on the East Pacific Rise. Nature, 451, 181 - 184
R. A. Dunn, D. W. Forsyth (2007). Crust and Lithospheric Structure – Seismic Structure of Mid-Ocean Ridges. In Treatise on Geophysics, p 419 - 437.
D. M. Saffer (2006?) Pore Pressure within Underthrust Sediment in Subduction Zones, in Convergent Margin Structure, Fluids, and Subduction Thrust Evolution.
G. F. Moore, et al. (2007) Three-Dimensional Splay Fault Geometry and Implications for Tsunami Generation, Science, 318, 1128 - 1131.
J. Park and V. Levin (2002) Seismic Anisotropy: Tracing Plate Dynamics in the Mantle, Science, 296, 485 - 489.
K. Obana et al. (2004) Microseismicity around rupture area of the 1944 Tonankai earthquake from ocean bottom seismograph observations. EPSL, 222, 561 - 572
N Bangs et al (2004) Evolution of the Nankai Trough decollement from the trench into the seismogenic zone: Inferences from three-dimensional seismic reflection imaging. Geology, 32; no. 4; p. 273–276;
N Bangs et al (1999). Fluid accumulation and channelling along the northern Barbados Ridge decollement thrust. JGR, 104, 20399 - 20414.
R. Stern (2002) Subduction zones. Reviews of Geophysics, 40, 4, 3-1 - 3-13.
S. Kodaira et al (2004). High Pore Fluid Pressure May Cause Silent Slip in the Nankai Trough. Science 304, 1295 - 1298.
Newman, A.V., S.Y. Schwartz, V. Gonzales, H.R. DeShon, J.M. Protti and L. Dorman (2002). Along strike variability in the seismogenic zone below Nicoya Peninsula, Costa Rica, Geophys. Res. Lett., 29, doi:10.1029/2002GL015409.
Ranero C.R. and R. von Huene (2000). Subduction erosion along the Middle America convergent margin, Nature, 404, 748-752.